My ex-husband and I were awarded 50-50 physical custody of our son. We alternate claiming him as a dependent on our tax returns. He is now 17 and setting his own schedule. Due to this situation, we aren't sure with whom he lives the most. I'd like to avoid using the highest salary or selecting who provides the most financial support as a determining factor. I've already determined that my son will not be eligible for aid with this method.
In this situation, can we choose either parent to complete the FAFSA? If the parent that completes the FAFSA does not claim our son as a dependent and file as "head of household", will the legitimacy of the information be questioned? If we can't quantify with whom our son lives the most, will this be an issue when determining who completes the FAFSA?
Thank you in advance for your assistance.